From Professor Wolff at The Philosopher’s Stone:
…Bernie is what we on the extreme left used to call a class traitor. He is a member of The Establishment who has turned against it. Hillary Clinton is so thoroughly enmeshed in The Establishment that I doubt she is capable of realizing the fact. It is in that fact, and not the naive notion of a quid pro quo, that lies the real significance of her lucrative speechifying on Wall Street.